Automatic tool-guiding device



, (No Model.) I

. v O. A. LOUGEE. V

AUTOMATIO TOOL GUIDING DEVICE.

NO. 287,838. Patented NOV. "6, 1883.

" UNITED STATES PATENT I OFFICE.

GHIARLYESA. LOUGEE, or HYDE PARK, MASSACHUSETTS.

AUTOMATIC TOOL-GUIDING DEVICE.

SPECIFICATION forming part of Letters Patent No. 287,858, dated November 6, 1833. Application filed May 16, 1283. (NomodcL) To all whom it may concern.-

Be it known that I, CHARLES A. LoUGEE, of Hyde Park, county of Norfolk, State of Massachusetts, have invented anlmprovement in Automatic Tool-Guiding Devices, of which the following description, in connection with the accompanying drawings, is a specificaing like parts. i

My invention, relating to an automatic toolguiding device, is shown as applied to a metalplaning machine, and has for its object to en able the tool to be automatically m0ved,.so that it acts in a curved path on the material, which isreeiprocated in a rectilinear path upon the lathe-bed.

The tool-controlling apparatus is composed of two members, one of which consists of a guide-piece having guidesthat are inclined to one another, and co-operate with pins or studs forming the other member of the toolcontrolling apparatus. One of the said members is connected with the tool or its holdingclamp, and the other member is connected with some portion of the planer having a movement relative to the tool which is simi lar to the movement of the material that is being planed. I

Figure 1 is a side elevation of a portion of a planer with a tool-controlling apparatus embodying this invention; Fig. 2, a plan View thereof; Fig. 3, a detail showing the tool-controlling mechanism in front elevation; and

Figs. 4 and 5, a front elevation and plan view, respectively, of a planer having a tool-eon-- relation to the longitudinal movement of the bed 6, or device holding the work to be cut, the resultant of the said movements causing the tool to act upon the material, f, being .cut in a curved path, as shown at 2, Fig. 2, instead of in the usual straight path. As shown in this instance, the tool is fed verticallybetween the successive cuts by the usual feed-screw or vertical tool-feeding mechanism, so that the said tool will gradually cut a portion of a cylindrical surface having its axis vertical or substantially at right angles to the planer-bed. I t1on, like letters on'the drawings represent- The tool-controlling mechanism by which the lateral movement of the tool is produced consists of a guide, 1', havingtwo guideways, (shown as grooves,)'3, inclined with relation to one another, as best shown in Fig. 2, and adapted to receive studs or rollers k, fixed upon 6 5 the bed 6, and traveling in unison with the movement of the material, f, being planed. The said guide-piece z is pivotally connected with a bar, m, fastened to the tool-carriage d, which latter is disconnected from the usual horizontal feeding mechanism, so as to move freely along the cross-slide 0 under the action of the said harm and guide z. The rectilinear movement'of the two studs 70 in the inclined guideway of the guide 2' will produce 5 such a movement of the tool-carriage (2 upon the cross-slide that the tool will trace a true are of a circle upon the bed e or material, f, carried by it and moving in unison with the said studs. l

The radius of curvature may be varied by placing thestuds knearer together or more remote from one another. As shown in Figs. 4 and 5, the novel tool-controlling mechanism is arranged to produce a vertical movement of-the tool, bearing a definite relation to its horizontal feeding movement transverse to the planer, so that the tool isfcd in a curved path transversely to the lathe-bed, and, in connection with the reciprocating movement of the said bed, will enable a cylindrical surface to be out having its axis parallel with the lathebed, instead of at right angles thereto, as in the other application of the invention. In this case the guide 1' is pivotally connected at 4 5 with the vertically-moving tool-carrying block or holder 12, and the studs 70 are fixednpon the cross-slide 0, the usual vertical feed of the block a being disconnected, and the carriage d being fed transversely by the usual feed-screw, Ice

0, or other feeding mechanism, for moving the tool transversely to the bed at each reciprocation thereof. s

It is obvious that a tool-guiding mechanism such as described may be applied to other grooves, atool-carriage, d, and tool and a contools than plauers'as, for instance, to alathe nection for such carriage and the guide, all when it is desired to turn an object with a 'conarranged to operate as set forth.

vex or concave surface and other applica- In testimony whereof Ihave signed my name 5 tions will suggest themselves to persons fato this specification in the presence of two sub- I 5 miliar with various metal-working tools. scribing Witnesses.

I claim CHARLES A. LOUGEE. The combination, substantially as shown and Vitnesses: described, of a Work-holder, a pivoted guide, .Tos. P. LIVERMORE,-

IO i, having grooves 3, studs 7;, engaging such V. H. SIGsToN. 

